So, you’ve been there. Just using the stock engines don’t cut it anymore for you. You have a bunch of hydrogen powered engines, be them from Cryo Engines, SSTU, BDB or some other mod I don’t know or remember. Or you’re using LH2 powered nuclear thermal rockets. Or you love Nertea’s lithium powered engines from NFP. Or the few methalox engines available (I think only from a patch of NFLV).

This mod adds new resource chains for those extra fuels, without removing the original "ore to all" mechanic. Run electrolysis from water or hydrates to create hydrogen, mine spodumene to refine lithium and, if you use methalox engines, get carbox dioxide and water to run the sabatier process for refueling.

And it also integrates into scansat, mining expansion and more

Requires Module Manager, B9 Part Switch and Community Resource Pack, all downloaded separately (as some need different versions for KSP 1.8 and 1.9)